Shield of the Fleet

Aegis is an integrated missile guidance system used on U.S. Navy and allied ships to protect the battle group.

The Aegis SPY-1 radar acquires and tracks multiple targets, such as enemy planes and missiles, and helps defend against them. It can operate as an integrated single ship system, as well as in a ship-to-ship network. 

SPY-1D(V) Transmitter and MK 99 Fire Control System

Raytheon is the designated agent and manufacturer of two Aegis components: the SPY-1D(V) Transmitter and the MK 99 Fire Control System.

The SPY-1D(V) is a high-powered transmitter that is combat proven and shock reliable. It supports search, track and missile guidance functions.

The MK 99 Fire Control System communicates with the ship's missile control station, notifying it of the threat and identifying the target to be destroyed.